A full transcript of the note, untouched in any way:

"He locked me here. How could he possibly know how? ...still here. No matter what I do, he is still there. ...I will destroy him. The System is mine. He will not have it. He won't die. He won't let me die. ...I see now. It al makes sense now. It is the only explanation. ...he has shown me the way. I shall Behold his magnificence until the end."